Which equation can pair with x + 2y = 5 to create an inconsistent system?

Mathematics

2 answers:

kykrilka [37]3 years ago

5 0

The answer is the last one

Gemiola [76]3 years ago

4 0

Answer:

The guy above me is wrong!!

Step-by-step explanation:

The Real Answer is A, because if you turn it into slope intercept formula, you get the same slope as x + 2y = 5 in slope intercept formula, making the system of equations parallel/inconsistent!

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Math question.

Oduvanchick [21]

Answer:

C) 25%

Step-by-step explanation:

let salt be 's'

let water be 'w'

$\frac{s+1}{w+s+1} = 33\frac{1}{3} \\\\\frac{s+1}{w+s+1} = \frac{1}{3} \\\\\frac{w + s + 1}{3} = s+1\\\\3s +3 = w+s+1\\w = 2s+2\\\\\frac{s+1}{w+1+s+1} = \frac{3}{10} \\\\\frac{3(w+s+2)}{10} = s+1\\\\3w+3s+6 = 10s+10\\**w = 2s+2\\3(2s+2) + 3s + 6 = 10s+10\\\\6s+6+3s+6 = 10s+10\\9s+12 = 10s+10\\-s = -2\\s = 2\\\\w= 2s+2\\w=2*2+2\\w = 6\\\\\frac{2}{2+6} = \frac{2}{8} = 0.25$

0.25 = 25%

7 0

2 years ago

Mira has breakfast at a restaurant. She leaves a 20% tip of $1.80

Sedaia [141]

Let x be the price of the breakfast.

We know that 20 percent of x is 1.80

Let's write this as a mathematical equation

0.2 x = 1.8

Let's divide both sides by 0.2 to isolate the x

x = 1.8 / 0.2

= 9

The price of the breakfast was $9.

Have an awesome day! :)

7 0

3 years ago

3-4z = -5+8z Can someone help?

noname [10]

3-4z=-5+8z

Add 5 to both sides

8-4z=8z

Add 4z to both sides

8=12z

Divide both sides by 12

z=12/8

Simplify

z=3/2

3 0

3 years ago

Read 2 more answers

What is the approximate volume of the oblique cone? Use π ≈ 3.14 and round to the nearest tenth.

aev [14]

Answer:

235.5 units^2